refactor(text-input): remove dispatch, forward events

Supports #7

- Forward events, inline functions
- Add style prop
- Remove exported props
- Bind value for TextInput

src/components/TextInput/TextInput.Story.svelte

@@ -36,6 +36,11 @@
       </button>
     </div>
   {:else}
-    <TextInput {...$$props} bind:value />
+    <TextInput
+      {...$$props}
+      bind:value
+      on:change={() => {
+        console.log('change');
+      }} />
   {/if}
 </Layout>